Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
110026goodexcellent51excellent
100028goodexcellent71excellent
090034goodexcellent71excellent
080048lightly pollutedexcellent101excellent
070059lightly pollutedexcellent101excellent
060058lightly pollutedexcellent101excellent
050062moderately pollutedexcellent91excellent
040056lightly pollutedexcellent81excellent
030059lightly pollutedexcellent91excellent
020069moderately pollutedexcellent91excellent
010071moderately pollutedexcellent81excellent
000069moderately pollutedexcellent81excellent
230060lightly pollutedexcellent71excellent
220053lightly pollutedexcellent81excellent
210046lightly pollutedexcellent61excellent
200033goodexcellent41excellent
190018goodexcellent21excellent
180013goodexcellent21excellent
17008excellentexcellent11excellent
16007excellentexcellent11excellent
150010excellentexcellent21excellent
140015goodexcellent21excellent
13009excellentexcellent11excellent
12005excellentexcellent11excellent